The Amtrak train, which was en route to West Virginia from Washington, D.C., collided with the truck west of Crozet, Va., at approximately 11:20 a.m. ET, an Amtrak official told Yahoo News.

“Two Amtrak crew members and three passengers were transported to a local hospital with minor injuries,” the Amtrak spokesperson said. “Local law enforcement is investigating the incident and crews are inspecting equipment for damage.”

Sen. Jeff Flake, R-Ariz., one of the GOP lawmakers who was on the train, told CNN that one person in the truck was killed and two others were injured. One of the injured was airlifted from the scene, Flake said, and he and other lawmakers and emergency personnel carried the other to an ambulance.

There were 3 people in the truck that was straddling the track and which the train hit. One is dead. One I am told is being transported but has minor injuries. One has serious injuries—please pray. Laura & I & multiple other physicians tended to the patients until EMTs showed up. https://t.co/qAmoofxakV

Flake said some members may have suffered minor injuries, but none appeared to be serious.

An aide for Rep. Jason Lewis told ABC News that the Minnesota Republican was “taken to the hospital and examined for possible concussion following train collision.”

“The train carrying GOP members to our retreat had a collision, but Rebecca and I are both okay,” Rep. Bradley Byrne, R-Ala., wrote on Twitter. “Security and doctors on board are helping secure the scene and treat injuries.”

On social media, several lawmakers and local news outlets shared photos of the wreckage at the scene.

Lawmaker on the train to the GOP retreat passes on this picture of the garbage truck that their train hit: pic.twitter.com/sYUmmdH60Q

NOW: Amtrak train collides with garbage truck in Crozet. Nurse on scene reports at least one fatality and at least one in critical condition. NBC29 is on scene and will bring you more details as we get them. pic.twitter.com/eU0uYL0JQx

At the White House, press secretary Sarah Sanders said President Trump had been “fully briefed” on the situation in Virginia.

“There is one confirmed fatality and one serious injury,” Sanders said in a statement. “There are no serious injuries among members of Congress or their staff. Senior administration officials are in regular contact with Amtrak and state and local authorities. Our thoughts and prayers are with everyone that has been affected by this incident.”

Today’s incident was a terrible tragedy. We are grateful for the first responders who rushed to the scene and we pray for the victims and their families. May they all be in our thoughts right now.

“It was a pretty rough hit, that’s what they all tell me,” the president added.

Trump is scheduled to attend the three-day retreat at the Greenbrier Resort in White Sulphur Springs, W.Va., on Thursday. Vice President Mike Pence, who was scheduled to speak there later Wednesday, said he still intends to do so.